### Home > CCA > Chapter 10 > Lesson 10.2.5 > Problem10-83

10-83.
1. Solve each equation by first rewriting it in a more useful form. Homework Help ✎

1. 252 = 125x+1

2. + = 2

3. x2 − 4x + 4 = 25

4. 9x = ()x+3

This is similar to problem 10-53.

$x=\frac{1}{3}$

Multiply by a common multiple to cancel out the fractions.

The left side is a perfect square.

x = 7 or −3

$\frac{1}{3}=3^{-1}$

x = −1